LaughingMooseGifts review for Walmart Marketplace

Earlier this year I installed this app when we began selling on the Walmart Marketplace. The first order we shipped was never paid for by Walmart because the shipping information didn't post back to the Walmart Admin Portal; Walmart canceled the order because 'it was way late' even though the customer had long since taken delivery. We have had multiple late orders in the Walmart Admin panel in the past few months either because they never were pushed through to Shopify and consequently to our order management system. Or because orders were shipped, but never updated as shipped back to the Walmart Admin Portal. What a disaster. Honestly I don't understand why this app exists on the Shopify App Store.